Rotary pump



UNITED STATES PATENT OFFICE.

WILLIS H. JOHNSON, OF SPRINGFIELD, ILLINOIS.

ROTARY PUMP.

Specification of Letters Patent No. 4,426, dated March 21, 1846.

To all whom t may concern Be it known that I, WILLIS H. JOHNSON, of Springfield, in the county of Sangamon and State of Illinois, have invented a new and useful Engine for Raising Tater by Centrifugal Force, which is described as follows, reference being had to the annexed drawings of the salne, making part of this specification. l

Figure l is a side elevation. Fig. 2 is a vertical section on the line m of Fig. 7 Fig. 3 is a view of the under sideof the revolving plate containing the segment lifting paddles. Fig. 4 is a view of the top of the same. Fig. 5 is a view of the under side of the ring plate containing the radial partitions forming the water chambers. Fig. 6 is a view of the top or under side of the same. Fig. 7 is a plan or top view of the engine. Fig. S is a vertical section of a water tube containing a common puppet valve and strainer to be fixed to the lower end of the pipe attached to the cylinder.

The nature of this invention and improvement consists in a new construction of an engine consisting of a cylinder made in cylindrical sections of a peculiar construction inside, held together by screw rods and divided interiorly by parallel partitions or plates having radial partitions on the under side of said plates forming water chambers and open in the center for water to pass through the cylinder from bottom to top within which cylinder is made to revolvev a central shaft turned with velocity by any convenient power having fixed upon it a number of circular plates containing on their under sides a number of curved paddles for throwing the water by centrifugal force against the interior of the cylinder and causing it to rise therein and pass out at the top and at the same time forming a partialvacuum which is instantly filled by the entrance of the water through an opening in the bottom of the cylinder caused by the atmospheric pressure forcing t-he water to rise through a tube connected to a neck around said opening in the cylinder.

A is a cylinder made in sections. A1 A2 are two sections made alike except as to length, the lower one being the longest in order to increase the size of the water chambers.

A8 is the top of the cylinder, A4 is the bottom of the cylinder.

A5 A5 are parallel partitions cast with B is the revolving shaft to which the circular' plates and buckets are attached arranged in the center of the cylinder.

C is a step or box for its lower gudgeon to turn in arranged across the opening for the admission of the water.

D is a common stufiing -box in which the upper part of the shaft turns.

E is a pulley on its upper end around which is passed a band leading to the driving power for turning the shaft.

F are the circular plates fixed to the shaft and carrying the bucket-s for raising the water. These plates are convex on top and flat on the bottom and of less diameter than the interior of the cylinder and placed below the level of the radial partitions of one of the circular partitions and above the concave surface of the nextcircular partition below. TheV water lifting paddles G of said circular plate are segments of circles cast with the plates. They extend from the circumference to the eye and are placed equidistant. Those marked G2 are made in the same manner but extend only about twothirds the distance between the circumference and the eye. They are made tapering and. convex on their lower edges corresponding with their concave surfaces of tne bottom of the cylinder and the concave surfaces of the circular partitions near which they revolve.

H are the screw rods for holding the parts of the cylinder together. The end plate A4 of the cylinder is made concave on the inside and has a neck I to which a coupling box J is affixed to secure the upper end of the induction tube. The end plate A3 of the cylinder is made circular and fiat on both sides and is fitted with a central stuffing box D and a collar and coupling K for the induction tube. Also with a cylindrical rim A9 corresponding with the section A1 for making a water chamber in therupper part of the cylinder into which the water is forced by the revolving paddles Gr.

L is a tube closed at the lowerend'by a strainer and open at the upper end which is fastened to the lower end of the conducting pipe perforated around its circumference with small apertures to admit the water and exclude sticks and dirt, and provided with a puppet valve to hold the Water in the cylinder and keep it lled.

The drawings represent an engine construoted with t-Wo paddle Wheels and ring plates, but for ordinary purposes it is best to construct them with three or four paddle Wheels, varying however in number according tothe depth of the Well from, and the height to which the water or other liquid is to be raised or forced, having generally a diameter of about four or six inches. But to raise large columns of Water as in the luse of the fire engine it will be necessary to increase the diameter of the paddle Wheels and add to their number, as each Wheel erforms its own office, the power depending upon the number of Wheels and their velocity.

In starting the engine it should be charged or filled with. fluid. The puppet valve in the strainer Will prevent the escape of the Water When the joints are tight. The arrows l, 2, 3, 4, 5, 6, 7, 8, 9 indicate the direction of the Water during the operation of the engine.

Vhat I claim 4as my invention and desire to secure b Letters Patent is The combination of the circular revolving paddle plates G with the cylindrical ring plates A1 A2 and radial partitions A7 constructed arranged and operated in the inanner and for the purpose set forth.

WILLIS H. JOHNSON.

Witnesses THOMAS MOFFETT, L. B. ADAMS. 

